Home / 672,647.09-1,008,798.71-199,221.73

Finding the Fourth Proportional to 672,647.09, 1,008,798.71 and 199,221.73

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Solution

The fourth proportional to 672,647.09, 1,008,798.71 and 199,221.73 is: 298,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,647.09 : 1,008,798.71 = 199,221.73 : x
  2. Step 2: Convert to fraction form
    672,647.09/1,008,798.71 = 199,221.73/x
  3. Step 3: Cross multiply
    672,647.09x = 1,008,798.71 × 199,221.73
  4. Step 4: Simplify right side
    672,647.09x = 200,974,620,709.86
  5. Step 5: Solve for x
    x = 200,974,620,709.86/672,647.09
  6. Step 6: Final answer
    x = 298,781.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.